ohsome-planet: Export OSM data and its history to GeoParquet: The GIScience Research Group at Heidelberg University and HeiGIT have released version 1.0.0 of #ohsome-planet, a tool for #cloudnative access to #OpenStreetMap (#OSM) data using the #GeoParquet format. Originally developed as an internal tool, it...
https://spatialists.ch/posts/2025/04-11-ohsome-planet-export-osm-data-and-its-history-to-geoparquet/ #GIS #GISchat #geospatial #SwissGIS

Reminded again teaching class to never assume your students know anything. Only one of my students had ever heard of Strava.

(explained to them how Strava ended up exposing US military movements in Afghanistan).

#gis

Postpass – a public OSM PostGIS instance

https://community.openstreetmap.org/t/postpass-a-public-osm-postgis-instance/128649
#OpenStreetMap #OSM #postpass #gis

New Coasts Emerging From The Retreat Of Northern Hemisphere Marine-Terminating Glaciers In The Twenty-First Century
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https://doi.org/10.1038/s41558-025-02282-5 <-- shared paper
--
#GIS #spatial #mapping #geography #climatechange #glaciers #glacial #melting #retreating #ctyosphere #spatialanalysis #spatiotemporal #deglaciation #coast #coastal #geomorphology # geomorphometry #proglacial #coastline #geology #NorthernHemisphere #Greenland #paraglacial #sediment #sedimentation #dynamic #retreating #ecosystems #Arctic #islands #new #climate #rock #permafrost #geodiversity #delta #moraine #beach #juvenile #snow #ice #calving

The Diverse Mountainous Landslide Dataset (DMLD) - A High-Resolution Remote Sensing Landslide Dataset in Diverse Mountainous Regions
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https://doi.org/10.3390/rs16111886 <-- shared paper
--
#GIS #spatial #mapping #landslide #dataset #detection #deeplearning #remotesensing #highresolution #earthobservation #massmovement #geology #engineeringgeology #risk #hazard #naturaldisaster #machinelearning #AI #mountain #mountainous #region #China #Yunnan #casestudy #geomorphlogy #geomorphometry #India #NewZealand #Kodagu #Kaikoura #cost #economics #infrastructure #publicsafety #spatialanalysis #model #modeling

Oooh... satellite GIS data fun! #gis

Hey #forestry #Ecology #biology #GIS folks... any recommendation of a program/library/app to calculate canopy cover on tropical tree plantations? #GISChat

Why are that many maps which tag Greenland as "no data"? There is a lot of data from Greenland, right? Low population doesn't mean "no data".

For instance this one ;) https://bird.makeup/users/terriblemaps/statuses/1908258332923547920

@Ruth_Mottram

I hope it's not forgotten that rio-cat was the original program for concatenating #GIS simple features from vector datasets for use in UNIX pipelines. It's a thing that I'm proud of having developed and that sparks joy every time I use it.

https://fiona.readthedocs.io/en/stable/cli.html#cat
https://github.com/OSGeo/gdal/pull/12115

Weak Asthenosphere Beneath The Eurasian Interior Inferred From Aral Sea Desiccation
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https://doi.org/10.1038/s41561-025-01664-w <-- shared paper
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#GIS #spatial #mapping #remotesensing #earthobservation #inSAR #AralSea #rebound #isostaticrebound #asthenosphere #geology #structuralgeology #mantle #crust #weight #rheology #spatialanalysis #spatiotemporal #continent #desiccation #loss #drying #water #hydrology #elastic #viscoelastic #model #modeling #uplift #lithosphere #humanimpacts #tectonic

Avalanche Debris Detection From Sentinel-2 Data Using Fuzzy Machine Learning And Colour Spaces For The Indian Himalaya
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https://doi.org/10.1080/2150704X.2025.2488532 <-- shared paper
--
#GIS #spatial #mapping #snowavalanches #snow #avalanches #machinelearning #fuzzyclassification #SVM #AI #randomforest #model #modeling #forecasting #risk #hazard #massmovement #engineeringgeology #remotesensing #earthobservation #imagery #spatialanalysis #spatiotemporal #change #debris #detection #satellite #sentinel #Himalaya #Himalayas #performance

Turbulence Characteristics Of Ice-Free Radiatively Driven Convection In A Deep, Unstratified Lake
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https://doi.org/10.1029/2024GL112607 <-- shared paper
--
[anecdotally, I have experienced this scuba diving in a drysuit in WA and BC, especially in freshwater, so it is wonderful to see some background]
#GIS #spatial #mapping #remotesensing #ROV #water #hydrology #underwater #GreatLakes #LakeSuperior #density #temperature #freshwater #lake #stratified #stratification #colder #warmer #mixing #convective #survey #energy

#GIS
List and describe datasets with Python | Documentation https://learn.arcgis.com/en/projects/list-and-describe-datasets-with-python/

uMap just released version 3.0, first one to officially support real-time collaborative editing. But also, very importantly: "a first version of a real undo/redo", which used to be a recurring problem when I ran training (a Ctrl + Z would undo all the changes you've made since the last save).
https://docs.umap-project.org/en/stable/changelog/#300-2025-04-07
#uMap #OSM #GIS #FLOSS

Assessment Of Western Oregon Debris-Flow Hazards In Burned And Unburned Environments
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https://doi.org/10.1002/esp.70045 <-- shared paper
--
[with more and more catastrophic wildfires, the engineering geology awareness and possible mapping of post-fire debris flow risk is important]
#GIS #spatial #mapping #wildfire #fire #oregon #risk #hazard #geology #geomorphology #risk #hazard #landslide #massmovement #landslide #postfire #soil #spatialanalysis #spatiotemporal #engineeringgeology #extremeweather #naturaldisaster #debrisflow #mechasisms #property #infrastrure #publicsafety #lossoflife #model #modeling #calibration #water #hydrology #inventory #hazardassessment #geomorphometry

Ancient Lakes And Rivers Unearthed In Arabia's Vast Desert
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https://phys.org/news/2025-04-ancient-lakes-rivers-unearthed-arabia.html <-- shared technical article
--
https://doi.org/10.1038/s43247-025-02224-1 <-- shared paper
--
#GIS #spatial #mapping #water #hydrology #quaternary #desert #geomorphology #landforms #geomorphometry #Arabia #climatechange #RubalKhali #SaudiArabia #holocene #model #modeling #spatialanalysis #spatiotemporal #earthsystemmodel #geology #lacustrine #fluvial #sediments #sedimentary #flood #flooding #lakes #AfricanMonsoon #rivers #paleohydrology #stratigraphy #remotesensing #landsat #earthobservation #dating #delta #cliff #terrace #rainfall #precipitation

Landscape Metrics - “R As GIS” Course
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https://jakubnowosad.com/rgis2025/output/landscape_metrics.html#/title-slide <-- shared presentation
--
#GIS #spatial #mapping #R #tutorial #onlinelearning #presentation #rasters #remotesensing #earthobservation #landscape #metrics #spatialanalysis #spatiotemporal #natural #social #cultural #ecosystems #biodiversity #water #waterquality #usecase #geomorphology #geomorphometry #patterns

Surveying Lake Titicaca [2024]
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https://www.hydro-international.com/content/article/surveying-lake-titicaca <-- shared technical article
--
[A very comprehensive hydrographic and shallow geophysical study and mapping effort of Lake Titicaca…]
“In October 2024, officers from the Category “A” Specialization Programme in Hydrography for Naval Officers of the Peruvian Navy conducted their complex multidisciplinary field project at Lake Titicaca at Puno in Peru, which is the highest navigable lake in the world (3,800 metres above sea level). The purpose of this survey was to address issues in the lacustrine environment due to hydrological processes that have occurred in recent years in this water body.…”
#GIS #spatial #mapping #hydrospatial #hydrology #hydrography #LakeTiticaca #Bolvia #Puno #Peru #PeruvianNavy #lake #remotesensing #survey #lacustrine #vertical #multibeam #echsounder #sonar #geomatics #cartography #QGIS

CPP, OAS, GIS April 2025 Update

You’ve probably seen the numerous clickbait links and videos on the Canada Pension Plan, Old Age Security and Guaranteed Income Supplement increases that really don’t do anything but force you to scroll through ad after ad after ad with information being secondary if it even exists. In this video I’m going to tell you the truth about CPP, OAS and GIS increases for 2025. #OAS #CPP #GIS #seniorsbenefits
https://youtu.be/6f-t6efvFaU

This map quality is insane. Esri / ArcGIS has really nice satellite tiles.

https://earthexplorer.usgs.gov/